Fresh Air Blower Control Module, Vehicle Electrical System Control Module

2025 Audi A6 allroad Premium PlusSECTION Fresh Air Blower Control Module, Vehicle Electrical System Control Module
GWW4AH-079020421Courtesy of AUDI OF AMERICA, LLC

J126 

Fresh Air Blower Control Module

J519 

Vehicle Electrical System Control Module

SC 

Fuse Panel C

SG 

Fuse Panel G

SG5 

Fuse 5 on Fuse Panel G

SC8 

Fuse 8 (On Fuse Panel C)

SD 

Fuse Panel D

SD10 

Fuse 10 (On Fuse Panel D)

T4t 

4-Pin Connector, Black

T17c 

17-Pin Connector, Red

T17cx 

17-Pin Connector, Red

T54a 

54-Pin Connector, Black

T73a 

73-Pin Connector, Black, Naturally Cloudy

TALU 

Coupling Point on Left A-Pillar, Bottom

V2 

Fresh Air Blower

688 

Ground Connection 2 on Center Tunnel

A98 

Positive Connection 4 (30) (in Instrument Panel Wiring Harness)

Refer to Applicable Wiring Diagram for Fuse Positions

*2 

Depending on Equipment

RENDER: 1.0x

NO RELATED

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Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.